someone give me a quick overview of how to solve congruences? say 3x=24 mod blah blah you get it...I would really appreciate it...I already know how but I am double checking my knowledge base!
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Say . Note that and , so the congruence is solvable and has exactly different solutions (up to congruence). If you can find one solution , the others are and . So it just remains to find . So for example, works. Now you can find everything else.